My meniscus is a little suspect too, so when I was deer hunting farther back in I took more trips with a lighter load on an external pack frame. I bolted two pieces of aluminum angle about 12" long to the bottom and used the front small wheel off a wheel chair mounted between the two angle pieces. When I'd get tired of carrying the meat, I could put it on the ground and wheel it like a mini wheel barrow or pull it like a one wheel wagon. Worked great. Horses for out west and elk. No way I was packing out one of those on my back.
